Daniel Wojtkowiak

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Neustadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Rotatable waveguide twist
- Patent number 6,404,298
- Issue date Jun 11, 2002
- Alcatel
- Stefan Rohr
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polarizer for two different frequency bands
- Patent number 6,181,222
- Issue date Jan 30, 2001
- Alcatel
- Udo Seewig
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polarizer for two different frequency bands
- Patent number 6,150,899
- Issue date Nov 21, 2000
- Alcatel
- Udo Seewig
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polarizer for exciting an antenna
- Patent number 6,130,649
- Issue date Oct 10, 2000
- Alcatel
- Daniel Wojtkowiak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Device for covering the aperture of an antenna
- Patent number 5,907,310
- Issue date May 25, 1999
- Alcatel
- Udo Seewig
- H01 - BASIC ELECTRIC ELEMENTS